/* ============================================= */
/* === SISTEMA DE ACTAS - DISEÑO MODERNO 2025 === */
/* ============================================= */

/* --- Variables Globales y Estilos Base --- */
:root {
    /* Paleta de colores claros y modernos */
    --primary-color: #5B6CFF; /* Azul vibrante */
    --primary-light: #8B9AFF;
    --primary-dark: #3B4CDF;
    --secondary-color: #FF6B9D; /* Rosa suave */
    --accent-color: #FFC75F; /* Amarillo cálido */
    --success-color: #2ED573; /* Verde fresco */
    --danger-color: #FF4757; /* Rojo suave */
    --warning-color: #FFA502; /* Naranja cálido */
    --info-color: #54A0FF; /* Azul información */
    
    /* Colores de texto y fondo */
    --text-color: #2C3E50; /* Azul oscuro para texto */
    --text-light: #6C7A89; /* Gris azulado para texto secundario */
    --bg-color: #F8F9FE; /* Fondo muy claro */
    --bg-light: #FFFFFF; /* Blanco puro */
    --bg-secondary: #F1F3FA; /* Gris muy claro */
    --border-color: #EAEAF2; /* Borde muy suave */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
}

/* Reset y configuración base para un mejor control responsive */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(91, 108, 255, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 107, 157, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 50% 50%, rgba(255, 199, 95, 0.03) 0%, transparent 50%);
    overflow-x: hidden;
    font-size: 16px;
}

/* Contenedor principal que se centra y adapta su ancho */
.container {
    width: 100%;
    padding: 0 20px;
    margin: 0 auto;
    max-width: 1400px;
}

/* --- Header Moderno --- */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-img {
    height: 80px;
    width: auto;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    padding: 8px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

header h1 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 i {
    margin-right: 12px;
    color: var(--accent-color);
}

/* --- Main --- */
main {
    padding: 2.5rem 0;
    min-height: calc(100vh - 140px);
}

/* --- Tabs Modernos --- */
.tabs {
    display: flex;
    margin-bottom: 30px;
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    position: relative;
}

.tabs::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 1;
}

.tab-btn {
    background: none;
    border: none;
    padding: 16px 24px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-light);
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    flex: 1;
    text-align: center;
    overflow: hidden;
}

.tab-btn::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: translateY(100%);
    transition: var(--transition);
}

.tab-btn:hover {
    background-color: rgba(91, 108, 255, 0.05);
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    background-color: rgba(91, 108, 255, 0.08);
}

.tab-btn.active::before {
    transform: translateY(0);
}

.tab-btn i {
    margin-right: 8px;
    font-size: 1.1rem;
}

/* --- Tab Content --- */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Cards Modernos --- */
.card {
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.card-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-light) 100%);
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.card-header h2 {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    color: var(--text-color);
    font-weight: 600;
    display: flex;
    align-items: center;
}

.card-header h2 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.card-body {
    padding: 25px;
}

/* --- Tables Modernas --- */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-light);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th, td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

tr {
    transition: var(--transition-fast);
}

tr:hover {
    background-color: rgba(91, 108, 255, 0.05);
}

tr:last-child td {
    border-bottom: none;
}

/* --- Forms Modernos --- */
.form-section {
    margin-bottom: 35px;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.form-section h3 {
    margin-bottom: 20px;
    color: var(--text-color);
    font-size: 1.3rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.form-section h3 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px;
    flex-direction: column;
}

.form-group {
    padding: 0 10px;
    margin-bottom: 20px;
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
    color: var(--text-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(91, 108, 255, 0.15);
    background-color: white;
}

/* --- Buttons Modernos --- */
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-info,
.btn-print,
.btn-success {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    color: white;
    font-weight: 500;
    min-width: 120px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before,
.btn-secondary::before,
.btn-danger::before,
.btn-info::before,
.btn-print::before,
.btn-success::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: var(--transition);
    z-index: -1;
}

.btn-primary:hover::before,
.btn-secondary:hover::before,
.btn-danger:hover::before,
.btn-info:hover::before,
.btn-print:hover::before,
.btn-success:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: 0 4px 6px rgba(91, 108, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(91, 108, 255, 0.35);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--text-light) 0%, var(--text-color) 100%);
    box-shadow: 0 4px 6px rgba(108, 122, 137, 0.25);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(108, 122, 137, 0.35);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #D63031 100%);
    box-shadow: 0 4px 6px rgba(255, 71, 87, 0.25);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 71, 87, 0.35);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #2E86DE 100%);
    box-shadow: 0 4px 6px rgba(84, 160, 255, 0.25);
}

.btn-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(84, 160, 255, 0.35);
}

.btn-print {
    background: linear-gradient(135deg, var(--warning-color) 0%, #EE5A24 100%);
    box-shadow: 0 4px 6px rgba(255, 165, 2, 0.25);
}

.btn-print:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 165, 2, 0.35);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #26DE81 100%);
    box-shadow: 0 4px 6px rgba(46, 213, 115, 0.25);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(46, 213, 115, 0.35);
}

button i {
    margin-right: 8px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
    flex-wrap: wrap;
}

/* --- Search Box Moderno --- */
.search-box {
    display: flex;
    align-items: center;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(91, 108, 255, 0.15);
}

.search-box input {
    flex-grow: 1;
    padding: 12px 15px;
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.95rem;
}

.search-box button {
    padding: 12px 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

/* --- Equipment Items Modernos --- */
.equipo-item {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    position: relative;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.equipo-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.remove-equipo-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--danger-color) 0%, #D63031 100%);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.remove-equipo-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* --- Signature Pad Mejorado --- */
.signature-section {
    margin-top: 25px;
    padding: 25px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-light) 100%);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.signature-container {
    display: flex;
    gap: 25px;
    margin-top: 20px;
    flex-wrap: wrap;
    flex-direction: column;
}

.signature-box {
    flex: 1;
    min-width: 250px;
    max-width: 500px;
}

.signature-box h4 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
}

.signature-pad-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.signature-pad {
    border: 2px dashed var(--primary-color);
    border-radius: var(--border-radius-sm);
    background-color: white;
    cursor: crosshair;
    display: block;
    margin-bottom: 15px;
    width: 100%;
    height: 180px;
    touch-action: none;
}

.signature-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* --- Modal Moderno --- */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    padding: 20px 0;
}

.modal-content {
    background-color: var(--bg-light);
    margin: 30px auto;
    padding: 0;
    border-radius: var(--border-radius-lg);
    width: 95%;
    max-width: 900px;
    box-shadow: var(--shadow-xl);
    animation: modalopen 0.4s;
    max-height: calc(100vh - 60px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

@keyframes modalopen {
    from {opacity: 0; transform: translateY(-30px) scale(0.95);}
    to {opacity: 1; transform: translateY(0) scale(1);}
}

.modal-header {
    padding: 20px 25px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.modal-header h2 {
    margin: 0;
    font-weight: 600;
    font-size: clamp(1.1rem, 3vw, 1.6rem);
}

.close {
    color: white;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0.8;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
}

.close:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: 25px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 20px 25px;
    background-color: var(--bg-secondary);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    flex-wrap: wrap;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* --- Estilos para el contenido del modal --- */
.detail-section {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-left: 5px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.detail-section:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.detail-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.detail-pair {
    display: flex;
    margin-bottom: 10px;
    flex-direction: column;
}

.detail-label {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.detail-value {
    color: var(--text-light);
    word-wrap: break-word;
    font-size: 0.95rem;
}

/* Tabla responsiva dentro del modal */
.detail-section .table-container {
    margin-top: 15px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.detail-section th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 12px 15px;
}

.detail-section td {
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    padding: 12px 15px;
}

.detail-section tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

.detail-section tr:hover {
    background-color: rgba(91, 108, 255, 0.05);
}

/* Estilos para las firmas en el modal */
.detail-signatures {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.signature-card {
    text-align: center;
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: var(--border-radius);
    background-color: var(--bg-light);
    box-shadow: var(--shadow-sm);
    flex: 1;
    min-width: 200px;
    transition: var(--transition);
}

.signature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.signature-card h4 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 1rem;
}

.signature-card img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-secondary);
}

.pdf-modal-content {
    width: 95%;
    max-width: 1100px;
}

/* --- PDF Grid Moderno --- */
.pdfs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.pdf-item {
    background-color: var(--bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.pdf-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pdf-item-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 15px 20px;
    display: flex;
    align-items: center;
}

.pdf-item-header i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.pdf-item-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
    word-wrap: break-word;
}

.pdf-item-body {
    padding: 20px;
    flex: 1;
}

.pdf-item-body p {
    margin: 8px 0;
    font-size: 0.9rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
}

.pdf-item-body p i {
    margin-right: 8px;
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.pdf-item-footer {
    padding: 15px 20px;
    background-color: var(--bg-secondary);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

/* --- Footer Moderno --- */
footer {
    background: linear-gradient(135deg, var(--text-color) 0%, var(--text-light) 100%);
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

/* --- Loading Spinner Moderno --- */
.spinner {
    border: 3px solid rgba(91, 108, 255, 0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border-left-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
    margin: 25px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Notification Moderna --- */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 20px;
    border-radius: var(--border-radius);
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    animation: slidein 0.3s ease-out;
    max-width: calc(100vw - 40px);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.notification i {
    margin-right: 10px;
    font-size: 1.2rem;
}

@keyframes slidein {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.notification.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #26DE81 100%);
}

.notification.error {
    background: linear-gradient(135deg, var(--danger-color) 0%, #D63031 100%);
}

.notification.info {
    background: linear-gradient(135deg, var(--info-color) 0%, #2E86DE 100%);
}

.notification.warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #EE5A24 100%);
}

/* --- Print Styles --- */
@media print {
    body {
        background-color: white;
        background-image: none;
    }
    
    .tabs,
    .tab-btn,
    .modal-footer,
    .form-actions,
    .search-box,
    button,
    .notification {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .modal-content {
        box-shadow: none;
        border: none;
        margin: 0;
        max-width: 100%;
        width: 100%;
    }
}

/* ============================================= */
/* === MEDIA QUERIES PARA DISEÑO RESPONSIVO === */
/* ============================================= */

/* Estilos para pantallas pequeñas (móviles) - Estilos base ya aplicados */

/* Estilos para pantallas medianas (tablets en vertical) */
@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }

    .pdfs-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .tab-btn {
        padding: 16px 24px;
        font-size: 1rem;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-danger,
    .btn-info,
    .btn-print,
    .btn-success {
        font-size: 1rem;
        min-width: 130px;
    }
}

/* Estilos para pantallas grandes (tablets en horizontal, portátiles pequeños) */
@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }

    .form-row {
        flex-direction: row;
    }

    .signature-container {
        flex-direction: row;
    }

    .detail-pair {
        flex-direction: row;
        align-items: flex-start;
    }

    .detail-label {
        min-width: 160px;
        margin-right: 15px;
        margin-bottom: 0;
    }

    .pdfs-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

/* Estilos para pantallas extra grandes (escritorio) */
@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

/* Estilos para pantallas muy grandes (monitores grandes) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* Estilos para pantallas ultra anchas */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
}